The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 20, 2015

Filed:

Dec. 07, 2011
Applicants:

Joe Butler Hathcoat, Conroe, TX (US);

Tri Thien Nguyen, Huntsville, TX (US);

Anthony Charles Machala, New Waverly, TX (US);

Inventors:

Joe Butler Hathcoat, Conroe, TX (US);

Tri Thien Nguyen, Huntsville, TX (US);

Anthony Charles Machala, New Waverly, TX (US);

Assignee:

Weatherford/Lamb, Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/122 (2006.01);
U.S. Cl.
CPC ...
E21B 33/122 (2013.01);
Abstract

A dual string packer may be provided with a crossover module located such that fluid communication may be provided from any tubular bore to the internal shifting chamber without completely disassembling the dual string packer. The crossover module may be attached to the through tubing mandrels at or near the bottom or lower end of the dual string packer.


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